What is the main operational consequence of increased 'dimensional friction' on keeping inter-dimensional portal doors open and steady?

Dimensional friction refers to the inherent resistive force or impedance encountered when attempting to establish, stabilize, or maintain a connection across distinct dimensions. This force actively opposes the coherent integration of differing dimensional substrates, working against the mechanisms that create and sustain inter-dimensional linkages. Inter-dimensional portal doors are defined as precisely engineered, stable, and controlled conduits designed to facilitate passage or interaction between two or more separate dimensions, requiring a continuous application of energy and complex field manipulation to remain open and steady. The main operational consequence of increased dimensional friction on keeping inter-dimensional portal doors open and steady is a substantial escalation in the continuous energy expenditure and active stabilization resources required. Increased dimensional friction directly exerts a disruptive pressure against the generated portal structure, constantly working to destabilize its coherence and integrity. To counteract this heightened resistive force and maintain a stable, open pathway, the operational systems responsible for the portal must apply a proportionately greater and sustained amount of energy to reinforce the portal's boundaries and continuously re-establish its inter-dimensional equilibrium. This leads to a marked decrease in the energy efficiency of portal operation, necessitates more robust power generation and transmission capabilities, and demands more frequent or intensive recalibration and maintenance cycles to prevent the portal from fluctuating, degrading, or collapsing due to the increased destabilizing influence.